Why the Bohr-Sommerfeld model of the atom been ignoredby general chemistry textbooks?

URN:NBN:SI:doc-O4WU3JHP2011Cardellini, LiberatoMansoor, Niazdocuments/doc/O/URN_NBN_SI_doc-O4WU3JHP_001.htmdocuments/doc/O/URN_NBN_SI_doc-O4WU3JHP_001.pdfdocuments/doc/O/URN_NBN_SI_doc-O4WU3JHP_001.txt458articlestr. 876-8831318-0207262031360URN:NBN:SI:doc-O4WU3JHPengSlovenian Chemical SocietySlovensko kemijsko društvoActa chimica slovenicaBYatomBohr-Sommerfeldov modelpouk kemijeWhy the Bohr-Sommerfeld model of the atom been ignoredby general chemistry textbooks?